-/* main.c */
-
-#define _POSIX_C_SOURCE 1 /* struct sigaction, sigaction() */
-#include <ncurses.h> /* keypad() */
-#include <signal.h> /* struct sigaction, sigaction() */
+/* main.c
+ *
+ * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
+ * or any later version. For details on its copyright, license, and warranties,
+ * see the file NOTICE in the root directory of the PlomRogue source package.
+ */
+
+#define _POSIX_C_SOURCE 1 /* sigaction, sigaction() */
+#define _DARWIN_C_SOURCE 1 /* SIGWINCH on OS X */
+#include <ncurses.h> /* keypad(), start_color() */
+#include <signal.h> /* SIGWINCH, sigaction, sigaction() */